Electrical Operation - Toshiba HV6FS Instruction Manual

OPERATION
MANUAL OPENING (All Types):
1. Push the trip lever in the direction of the
arrow (Fig. 25).
2. The On-Off indicator changes to OFF
(green).
3. The Spring Charge Indicator changes to
WHITE.

ELECTRICAL OPERATION

The flow chart shown in Fig. 27 illustrates the
sequence of electrical operation of the MU and
ML type circuit breakers.
Refer to Fig. 26 and the circuit breaker
schematics shown in Fig. 28 through Fig. 29 for
determining external control circuit connections
to the circuit breaker.
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Fig. 25 Manually Opening Breaker
SYMBOL DESCRIPTION
M Motor
TC Voltage Trip Coil
CC Close Coil
UV Undervoltage Trip Coil
a1 to a3 Auxiliary Contacts (N.O.)
b1 to b2 Auxiliary Contacts (N.C.)
X Control Relay
X-a Control Relay Contact (N.O.)
X-b Control Relay Contact (N.C.)
Y Auxiliary Relay
Y-b Auxiliary Relay Contact (N.C.)
LS Limit Switch
R Resistor
D Diode
C Capacitor
RL Red Lamp
GL Green Lamp
Fig. 26 Legend for Schematics
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